package com.atguigu.lease.web.admin.service.impl;

import com.atguigu.lease.common.minio.MinioProperties;
import com.atguigu.lease.web.admin.service.FileService;
import io.minio.*;
import io.minio.errors.*;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
import org.springframework.web.multipart.MultipartFile;

import java.io.IOException;
import java.security.InvalidKeyException;
import java.security.NoSuchAlgorithmException;
import java.text.SimpleDateFormat;
import java.util.Date;
import java.util.UUID;

@Service
public class FileServiceImpl implements FileService {


    @Autowired
    private MinioClient client;
    @Autowired
    private MinioProperties properties;

    @Override
    public String upload(MultipartFile file) throws ServerException, InsufficientDataException, ErrorResponseException, IOException, NoSuchAlgorithmException, InvalidKeyException, InvalidResponseException, XmlParserException, InternalException {

            // 判断桶是否存在 不存在则创建
            String bucketName = properties.getBucketName();
            String policy = """
                    {
                      "Statement" : [ {
                        "Action" : "s3:GetObject",
                        "Effect" : "Allow",
                        "Principal" : "*",
                        "Resource" : "arn:aws:s3:::%s/*"
                      } ],
                      "Version" : "2012-10-17"
                    }
                    """.formatted(bucketName);
            boolean result = client.bucketExists(BucketExistsArgs.builder().bucket(bucketName).build());
            if (!result) {
                client.makeBucket(MakeBucketArgs.builder().bucket(bucketName).build());
                client.setBucketPolicy(SetBucketPolicyArgs.builder().bucket(bucketName).config(policy).build());

            }
            // 拼接文件名
            String filename = new SimpleDateFormat("yyyyMMdd").format(new Date())+"/"+ UUID.randomUUID()+"-"+file.getOriginalFilename();
            // 上传文件到minio
            client.putObject(PutObjectArgs.builder()
                    .bucket(bucketName)
                    .stream(file.getInputStream(), file.getSize(), -1)
                    .contentType(file.getContentType())
                    .object(filename)
                    .build());
            return String.join("/",properties.getEndpoint(),bucketName,filename);
    }
}
